For Portland :
No gale warning.
The reliability of the situation is good.
Overcast in the morning, very cloudy with possibility of thunder storms in the afternoon. Showers all day. In the evening, good clear periods but lots of cloud, too.
Light showers. WNW wind force 4 continuing all day. Gusts reaching 38 knots in the middle of the day. Moderate sea becoming rough in the middle of the day. Low, fairly long swell from WSW. Visibility reduced by mist becoming excellent in the middle of the day.